Basic size of mm

d	40
D	90
T	25.25

The basic rated load is kN

trends C	85
static state Co	81.5

Fatigue load limit Pu	9.5

Rated rotation speed is r/min

Refer to the speed	5600
limit speed	7500

quality	0.72
model	*31308J2/QCL7C
ISO335 dimension series (ABMA)	7FB

Dimensions are mm

d	40
d1 ～	67.1
B	23
C	17
r1,2 min	2
r3,4 min	1.5
a	28

Shoulder gear and chamfer size mm

Da max	51
db min	49
Da min	71
Da max	81
Db min	86
Ca min	3
Cb min	8
ra max	2
rb max	1.5

Calculation coefficient

e	0.83
Y	0.72
Yo	0.4